Routing Commands
281
ProSafe Managed Switch
Helper IP Address.............................. 1.2.3.4
............................................... 1.2.3.5
show ip helper statistics

Use this command to display the number of DHCP and other UDP packets processed and

relayed by the UDP relay agent.

Format show ip helper statistics
Mode Privileged EXEC
Term Definition
DHCP client
messages received The number of valid messages received from a DHCP client. The count is
incremented only if IP helper is enabled globally, the ingress routing interface is up,
and the packet passes a number of validity checks, such as having a TTL>1 and
having valid source and destination IP addresses.
DHCP client
messages relayed The number of DHCP client messages relayed to a server. If a message is relayed
to multiple servers, the count is incremented once for each server.
DHCP server
messages received The number of DHCP responses received from the DHCP server. This count
includes only messages that the DHCP server unicasts to the relay agent for relay
to the client.
DHCP server
messages relayed The number of DHCP server messages relayed to a client.
UDP clients
messages received The number of valid UDP packets received. This count includes DHCP messages
and all other protocols relayed. Conditions are similar to those for the first statistic in
this table.
UDP clients
messages relayed The number of UDP packets relayed. This count includes DHCP messages relayed
as well as all other protocols. The count is incremented for each server to which a
packet is sent.
DHCP message hop
count exceeded max The number of DHCP client messages received whose hop count is larger than the
maximum allowed. The maximum hop count is a configurable value listed in show
bootpdhcprelay. A log message is written for each such failure. The DHCP relay
agent does not relay these packets.
DHCP message with
secs field below min The number of DHCP client messages received whose secs field is less than the
minimum value. The minimum secs value is a configurable value and is displayed in
show bootpdhcprelay. A log message is written for each such failure. The DHCP
relay agent does not relay these packets.
DHCP message with
giaddr set to local
address
The number of DHCP client messages received whose gateway address, giaddr, is
already set to an IP address configured on one of the relay agent’s own IP
addresses. In this case, another device is attempting to spoof the relay agent’s
address. The relay agent does not relay such packets. A log message gives details
for each occurrence.